400NL cbet here? reraised pot

[Toretto]

Party Poker, $2/$4 NL Hold'em Cash Game, 5 Players
LeggoPoker Hand History Converter

Hero (BB): $400
UTG: $316.41
CO: $417.86
BTN: $350
SB: $462

Pre-Flop: K[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/diamond.gif[/img] dealt to Hero (BB)
UTG folds, <font color="red">CO raises to $16</font>, BTN calls $16, SB folds, <font color="red">Hero raises to $66</font>, CO calls $50, BTN folds

Flop: ($150) 4[img]/images/graemlins/club.gif[/img] 6[img]/images/graemlins/spade.gif[/img] 2[img]/images/graemlins/heart.gif[/img] (2 Players)
Hero checks, <font color="red">CO bets $28</font>, Hero folds

Results: $150 Pot

villain was unknown, table just got started
the only thing i can say that he called instantly my rr prf
i dont know if he folds here often enough to make this cbet profitable
as played the fold is ok? really dont know what i should think about that smallish bet...

toretto